// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
 **********************************************************************
 * Copyright (c) 2013-2014, International Business Machines
 * Corporation and others.  All Rights Reserved.
 **********************************************************************
 */
package com.ibm.icu.impl;

import java.text.FieldPosition;

/**
 * DontCareFieldPosition is a subclass of FieldPosition that indicates that the caller is not
 * interested in the start and end position of any field.
 *
 * <p>DontCareFieldPosition is a singleton, and its instance is immutable.
 *
 * <p>A <code>format</code> method use <code>fpos == DontCareFieldPosition.INSTANCE</code> to tell
 * whether or not it needs to calculate a field position.
 */
public final class DontCareFieldPosition extends FieldPosition {

    public static final DontCareFieldPosition INSTANCE = new DontCareFieldPosition();

    private DontCareFieldPosition() {
        // Pick some random number to be sure that we don't accidentally match with
        // a field.
        super(-913028704);
    }

    @Override
    public void setBeginIndex(int i) {
        // Do nothing
    }

    @Override
    public void setEndIndex(int i) {
        // Do nothing
    }
}
